[testsuite patch] Fix false Fortran regressions with recent gcc

[Joel Brobecker]

> gdb/testsuite/ChangeLog
> 2016-02-13  Jan Kratochvil  <jan.kratochvil@redhat.com>
> 
> 	Fix compatibility with recent gfortran-5.3.1.
> 	* gdb.fortran/vla-history.exp (print vla1 allocated)
> 	(print vla2 allocated, print $2, print $3): Remove
> 	(print $4): Rename to ...
> 	(print $2): ... here.
> 	(print $9): Rename to ...
> 	(print $5): ... here.
> 	(print $10): Rename to ...
> 	(print $6): ... here.
> 	* gdb.fortran/vla.f90: Add pvla initialization.

Thanks for doing this. Looks good to me, so go ahead and push.
But adding Christoph in Cc, in case he has any feedback on this
patch.

-- 
Joel